420123152 has 40 divisors (see below), whose sum is σ = 856980864. Its totient is φ = 199130624.

The previous prime is 420123133. The next prime is 420123161. The reversal of 420123152 is 251321024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36533 + ... + 46635.

Almost surely, 2^420123152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420123152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (428490432).

420123152 is an abundant number, since it is smaller than the sum of its proper divisors (436857712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420123152 is a wasteful number, since it uses less digits than its factorization.

420123152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10247 (or 10241 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 420123152 is about 20496.9059128445. The cubic root of 420123152 is about 748.9604275698.

Adding to 420123152 its reverse (251321024), we get a palindrome (671444176).

The spelling of 420123152 in words is "four hundred twenty million, one hundred twenty-three thousand, one hundred fifty-two".